EV Diagnostics
Verified EV diagnostic knowledge page

Hyundai P193D4B

Over temperature P193D19 HF EOP System Fault - Over current P193E71 HF EOP Performance – EOP stuck P193D96 HF EOP System Fault - Internal fault P193D13 HF EOP System Fault – Open c

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService need is not explicitly classified in the supplied diagnostic record. However, Hyundai’s official communication provides a technician diagnostic and replacement procedure, so professional diagnosis is appropriate.
Confidence95%

Quick answer

P193D4B is a Hyundai HF EOP system fault identified as “Over temperature.” Hyundai’s official service communication directs technicians to diagnose the related shop-manual procedure, inspect for wiring-harness issues, and replace the HF EOP if no harness issue is found.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does P193D4B mean?

P193D4B is a Hyundai HF EOP system fault identified as “Over temperature.” Hyundai’s official service communication directs technicians to diagnose the related shop-manual procedure, inspect for wiring-harness issues, and replace the HF EOP if no harness issue is found.

2. Technical explanation

The supplied evidence identifies P193D4B as “HF EOP System Fault - Over temperature.” The official Hyundai/NHTSA communication groups this code with other HF EOP-related faults and provides a diagnostic direction: refer to the related shop manual, check for wiring-harness issues, and, if none are found, replace the HF EOP.

3. What system is affected?

HF EOP system. The supplied evidence does not expand the abbreviation “HF EOP.”

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

Not yet established by verified evidence.

6. Possible causes

  • A wiring-harness issue is specifically identified as an item to check in Hyundai’s service direction.
  • If no wiring-harness issue is found, Hyundai’s service direction calls for HF EOP replacement. The evidence does not establish a more specific internal cause.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Arrange diagnosis by a qualified Hyundai service technician or repair facility.
  • Do not attempt high-voltage or component repair based on this page; the supplied evidence directs use of the related shop manual.

10. Step-by-step troubleshooting

  1. Use the related Hyundai shop manual to diagnose P193D4B.
  2. Inspect for wiring-harness issues as directed by Hyundai.
  3. If no wiring-harness issues are found, Hyundai’s service communication directs replacement of the HF EOP.

11. When to contact service

Service need is not explicitly classified in the supplied diagnostic record. However, Hyundai’s official communication provides a technician diagnostic and replacement procedure, so professional diagnosis is appropriate.

12. What the service center may check

  • Retrieve and follow the related Hyundai shop-manual diagnostic procedure.
  • Check for wiring-harness issues.
  • If no wiring-harness issues are found, replace the HF EOP, as directed in Hyundai communication 22-AT-009H.

13. Possible repair or resolution

  • Hyundai communication 22-AT-009H directs HF EOP replacement when the related diagnosis finds no wiring-harness issue.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Hyundai service communication 22-AT-009H, published through NHTSA as Manufacturer Communication PDF 10217250 on 2022-07-14. It covers P193D4B as “HF EOP System Fault - Over temperature” and directs shop-manual diagnosis, wiring-harness inspection, and HF EOP replacement if no harness issue is found.

16. Recall information

No recall relationship is established by verified evidence.

17. Official manufacturer information

Official source: NHTSA Manufacturer Communication PDF 10217250, Hyundai communication 22-AT-009H: https://static.nhtsa.gov/odi/tsbs/2022/MC-10217250-0001.pdf

19. Frequently asked questions

What does Hyundai code P193D4B mean?

Verified evidence identifies P193D4B as “HF EOP System Fault - Over temperature.”

Which vehicles are verified as applicable in the supplied data?

The supplied applicability data lists 2022 Hyundai Kona and 2022 Hyundai Santa Fe in the United States. The cited Hyundai communication also lists other vehicle lines, but those are not included in the supplied applicability records for this diagnostic page.

What does Hyundai direct a technician to do for P193D4B?

Hyundai directs the technician to use the related shop manual for diagnosis, check for wiring-harness issues, and replace the HF EOP if no wiring-harness issue is found.

Is it safe to drive or charge with P193D4B?

Not yet established by verified evidence.

20. Sources & verification

Verified
Hyundai P193D4B: Over temperature P193D19 HF EOP System Fault - Over… | EV Diagnostics